From a10195f50378d4552684b2d7ec2f819d47e145ca Mon Sep 17 00:00:00 2001
From: Sylvester Joosten <sjoosten@anl.gov>
Date: Fri, 21 May 2021 09:33:41 -0500
Subject: [PATCH] Added correct GPS link

---
 src/docs/part1/simple_detector.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/docs/part1/simple_detector.md b/src/docs/part1/simple_detector.md
index 414830f..13fbe97 100644
--- a/src/docs/part1/simple_detector.md
+++ b/src/docs/part1/simple_detector.md
@@ -141,7 +141,7 @@ This will run geant4 using the General Particle Source (GPS) tool.
 The output will be a root file containing the generated events and GEM tracker hits.
 Look at [gps.mac](https://eicweb.phy.anl.gov/EIC/tutorials/ip6_tutorial_1/-/blob/master/gps.mac).
 
-Refer to the [GPS Documentation](http://www.fe.infn.it/u/paterno/Geant4_tutorial/slides_further/GPS/GPS.pdf) for more setup possibilities.
+Refer to the [GPS Documentation](https://geant4-userdoc.web.cern.ch/UsersGuides/ForApplicationDeveloper/html/GettingStarted/generalParticleSource.html?highlight=gps#macro-commands) for more setup possibilities.
 
 ## Using detector description in analysis
 
-- 
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